WB1 7.8 Large Scale iBGP Route Reflection with Clusters

• Configure R2 in BGP AS 200, and configure an EBGP peering with BB2.
• BB2 is in AS 254, and is authenticating this peering with the password "CISCO".
• Configure BGP on all other internal devices using AS 100.
• Configure a BGP cluster between R1, R4, and R6 as follows:
o R1 should be the route-reflector, and peer with R4 and R6.
o R4 and R6 should peer with BB3 and BB1 respectively, who are in AS 54.
o Use the cluster-id 150.X.1.1.
• Configure a BGP cluster between R3, SW1, and SW3 as follows:
o R3 should be the route-reflector, and peer with SW1 and SW3.
o Use the cluster-id 150.X.3.3.
• Configure a BGP cluster between R5, SW2, and SW4 as follows:
o R5 should be the route-reflector, and peer with SW2 and SW4.
o Use the cluster-id 150.X.5.5.
• R1, R3, and R5 should all peer with each other in a full-mesh, but should not propagate updates between clusters.
• Configure EBGP peerings between R2 & R3 and R2 & R5.
• Advertise the Loopback0 interfaces of all devices into BGP.
• Ensure full reachability to these Loopback0 interfaces from all internal devices, and to all prefixes learned from AS 54 and 254 from all internal devices when sourcing traffic from the Loopback0 interfaces.

R1:
router bgp 100
bgp cluster-id 150.1.1.1
network 150.1.1.0 mask 255.255.255.0
neighbor 155.1.146.4 remote-as 100
neighbor 155.1.146.6 remote-as 100
neighbor 155.1.146.4 route-reflector-client
neighbor 155.1.146.6 route-reflector-client
neighbor 155.1.0.5 remote-as 100
neighbor 155.1.13.3 remote-as 100
neighbor 155.1.0.5 route-reflector-client
neighbor 155.1.13.3 route-reflector-client

R4:
router bgp 100
network 150.1.4.0 mask 255.255.255.0
neighbor 155.1.146.1 remote-as 100
neighbor 204.12.1.254 remote-as 54

R6:
router bgp 100
network 150.1.6.0 mask 255.255.255.0
neighbor 155.1.146.1 remote-as 100
neighbor 54.1.1.254 remote-as 54

R3:
router bgp 100
bgp cluster-id 150.1.3.3
network 150.1.3.0 mask 255.255.255.0
neighbor 155.1.37.7 remote-as 100
neighbor 155.1.79.9 remote-as 100
neighbor 155.1.37.7 route-reflector-client
neighbor 155.1.79.9 route-reflector-client
neighbor 155.1.13.1 remote-as 100
neighbor 155.1.0.5 remote-as 100
neighbor 155.1.23.2 remote-as 200
neighbor 155.1.0.5 route-reflector-client
neighbor 155.1.13.1 route-reflector-client

SW1:
router bgp 100
network 150.1.7.0 mask 255.255.255.0
neighbor 155.1.37.3 remote-as 100
SW3:
router bgp 100
network 150.1.9.0 mask 255.255.255.0
neighbor 155.1.37.3 remote-as 100

R5:
router bgp 100
bgp cluster-id 150.1.5.5
network 150.1.5.0 mask 255.255.255.0
neighbor 155.1.58.8 remote-as 100
neighbor 155.1.108.10 remote-as 100
neighbor 155.1.58.8 route-reflector-client
neighbor 155.1.108.10 route-reflector-client
neighbor 155.1.0.1 remote-as 100
neighbor 155.1.0.3 remote-as 100
neighbor 155.1.0.2 remote-as 200
neighbor 155.1.0.1 route-reflector-client
neighbor 155.1.0.3 route-reflector-client
SW2:
router bgp 100
network 150.1.8.0 mask 255.255.255.0
neighbor 155.1.58.5 remote-as 100

SW4:
router bgp 100
network 150.1.10.0 mask 255.255.255.0
neighbor 155.1.58.5 remote-as 100

R2:
router bgp 200
network 150.1.2.0 mask 255.255.255.0
neighbor 192.10.1.254 remote-as 254
neighbor 192.10.1.254 password CISCO
neighbor 155.1.23.3 remote-as 100
neighbor 155.1.0.5 remote-as 100